Which of these radio waves would fall in the "water hole"?
A) 15,000 cm in wavelength
B) 6.563 × cm in wavelength
C) 19 cm wavelength
D) 150 cm in wavelength
E) 243 cm in wavelength

Question

Quizplus · Accepted Answer

The "water hole" is a region of the radio spectrum between 18 cm and 21 cm in wavelength, which is considered optimal for interstellar communication. 19 cm falls within this range.

Which of These Radio Waves Would Fall in the "Water